NATURAL HISTORY · CATALOGUE RECORD
Golden Oldfield Mouse
Thomasomys aureus (Tomes, 1860)
Source-backed taxonomic record
Accepted species in Catalogue of Life’s 11 September 2026 base release. This preserves the source classification and available supporting data; it is not a completed species monograph.
Open encyclopedia reference
The golden Oldfield mouse or golden thomasomys (Thomasomys aureus) is a species of rodent in the family Cricetidae. It is found in Colombia, Ecuador, Peru, and Venezuela. Both the common and genus name commemorate the British zoologist Oldfield Thomas who worked at the Natural History Museum, London and studied South American rodents.
Wikipedia contributors, Golden Oldfield mouse; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T09:11:13.769621+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Thomasomys aureus (Tomes, 1860)
- Name authority
- (Tomes, 1860)
- Common name
- Golden Oldfield Mouse
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Mammalia
- Order
- Rodentia
- Family
- Cricetidae
- Genus
- Thomasomys
- Extinction status
- Recorded extant
Classification family tree
Nested taxonomic groups from the source. This is not a direct-ancestor chain, a dated evolutionary tree or a phylogenetic reconstruction.
- domainEukaryota (Chatton, 1925) Whittaker & Margulis, 1978
- kingdomAnimalia
- phylumChordata
- subphylumVertebrata
- infraphylumGnathostomata
- parvphylumOsteichthyes
- megaclassTetrapoda
- classMammalia Linnaeus, 1758
- subclassTheria Parker & Haswell, 1897
- infraclassEutheria Gill, 1872
- orderRodentia Bowdich, 1821
- suborderMyomorpha Brandt, 1855
- superfamilyMuroidea Illiger, 1811
- familyCricetidae Fischer, 1817
- subfamilySigmodontinae Wagner, 1843
- genusThomasomys Coues, 1884
- speciesThomasomys aureus (Tomes, 1860)
Close classified relatives
These entries share the source’s genus, Thomasomys. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Beady-eyed MouseThomasomys baeops (Thomas, 1899) | CricetidaeChordata | Accepted speciesRecorded extant |
| Cinnamon-colored ThomasomysThomasomys cinnameus Anthony, 1924 | CricetidaeChordata | Accepted speciesRecorded extant |
| Peruvian Oldfield MouseThomasomys eleusis Thomas, 1926 | CricetidaeChordata | Accepted speciesRecorded extant |
| Gracile ThomasomysThomasomys gracilis Thomas, 1917 | CricetidaeChordata | Accepted speciesRecorded extant |
| Hudson's ThomaomysThomasomys hudsoni Anthony, 1923 | CricetidaeChordata | Accepted speciesRecorded extant |
| Ladew's Oldfield MouseThomasomys ladewi Anthony, 1926 | CricetidaeChordata | Accepted speciesRecorded extant |
| Large-eared ThomasomysThomasomys macrotis Gardner & Romo R., 1993 | CricetidaeChordata | Accepted speciesRecorded extant |
| Unicolored Oldfield MouseThomasomys monochromos Bangs, 1900 | CricetidaeChordata | Accepted speciesRecorded extant |
| Rhoads's Oldfield MouseThomasomys rhoadsi Stone, 1914 | CricetidaeChordata | Accepted speciesRecorded extant |
| Ucucha ThomasomysThomasomys ucucha Voss, 2003 | CricetidaeChordata | Accepted speciesRecorded extant |
| Dressy Oldfield MouseThomasomys vestitus (Thomas, 1898) | CricetidaeChordata | Accepted speciesRecorded extant |
| Rosalinda's Oldfield MouseThomasomys rosalinda Thomas & St. Leger, 1926 | CricetidaeChordata | Accepted speciesRecorded extant |
Documented distribution
Source distribution statements, not a complete range map. A listed locality is not necessarily a place of origin.
Source literature & publication evidence
References attached to this source record, including nomenclatural citations where supplied. This is a selected bibliography; abbreviated citations remain in the source’s form.
- https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=633366 Source fields: Taxon.tsv dwc:namePublishedIn, Taxon.tsv dcterms:references
Origins, evidence & remaining research
Name authority and publication references document nomenclature where the source supplies it. They do not establish evolutionary origins or the earliest fossil occurrence.
Specimen-level evidence, morphology, ecological research, phylogenetic studies, a comprehensive bibliography and a located literary passage have not yet been compiled for this record. A suitable sourced image remains to be added.
Dataset citation & attribution
This exact taxon in ChecklistBank · Catalogue of Life 2026-09-11
Catalogue of Life 2026-09-11; dataset 316321; doi:10.48580/dgz5n. https://creativecommons.org/licenses/by/4.0/ . Retrieved 5 October 2026.
Stable key: col:56JJW. Classification follows source parent identifiers. English common names may vary by region.